Worst Service Ever Post Office!!!!!!!!!!

I sent a parcel at Marshalltown post office a month ago, its still at the Johannesburg depo centre. I have exhausted all my options all I wanted was to get my parcel back so that I can send it using other channels because they have failed and I no longer need their services. Since there's no communication or whatsoever from them and they don't answer their telephones, I am really not happy with their services.